Electromagnetic damper and gravimeter
An electromagnetic damper and capacitor technology, which is applied in the field of gravimeter, can solve the problems of poor anti-interference ability, and achieve the effect of large damping coefficient, small gravity change hysteresis, and good compression effect
Active Publication Date: 2016-05-04
INST OF GEODESY & GEOPHYSICS CHINESE ACADEMY OF SCI
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Problems solved by technology
[0005] The purpose of the present invention is to provide an electromagnetic damper to solve the problem of poor anti-interference ability of the gravimeter in the prior art
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[0038] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...
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Abstract
The invention provides an electromagnetic damper and a gravimeter, and relates to the technical field of a gravimeter, for solving the problem of poor anti-interference capability of a conventional gravimeter in the prior art. The electromagnetic damper comprises a housing, and a sampling mass block, a detection spring, a current vortex plate, a magnetic circuit apparatus, a differential capacitor and a control conversion circuit which are installed in the housing, wherein one end of the detection spring is connected with the housing, and the other end of the spring is connected with the sampling mass block; the top portion of the vertex current plate is connected with the bottom portion of the sampling mass block, the bottom portion of the current vortex plate is connected with a cylindrical frame, and a current-carrying coil is wound on the cylindrical frame; the bottom portion of the current vortex plate and the cylindrical frame are disposed in the magnetic circuit apparatus; the differential capacitor comprises two capacitance fixed pole plates and a capacitance moving pole plate; and the control conversion circuit is respectively connected with the differential capacitor and the current-carrying coil, and the control conversion circuit converts difference capacitance output by the differential capacitor into currents and transmitting to the current-carrying coil. The electromagnetic damper is high in anti-interference capability and high in detection precision.
Description
technical field [0001] The invention relates to the technical field of gravimeters, in particular to an electromagnetic damper and a gravimeter. Background technique [0002] When the marine gravimeter is working, the influence of external dynamic environment changes on the observation results is the main source of error in the measurement of the marine gravimeter. When the survey ship is carrying out marine gravity measurement, it is possible to move in six degrees of freedom, and then generate disturbance acceleration, among which the disturbance acceleration in the vertical direction has the greatest impact on marine gravity measurement. This disturbance acceleration value is 10 of the gravity change value to be measured 5 ~10 6 Times, mixed with the gravitational acceleration that needs to be measured, brings great difficulties to marine gravity measurement and produces large observation errors. Therefore, the prerequisite for the ocean gravimeter to perform measureme...
Claims
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Login to View More IPC IPC(8): G01V7/00G01V7/02
CPCG01V7/00G01V7/02
Inventor 吴鹏飞汪龙邹舟柳林涛
Owner INST OF GEODESY & GEOPHYSICS CHINESE ACADEMY OF SCI